Cisco
300-320 · Question #266
300-320 Question #266: Real Exam Question with Answer & Explanation
The correct answer is C: Equal-Cost Multipath can be used to choose the forwarding path.. Cisco FabricPath uses IS-IS as its control plane to enable ECMP across the fabric, allowing multiple active forwarding paths simultaneously unlike STP-based designs.
Question
What is an advantage of using the Cisco FabricPath feature in a data center environment?
Options
- AVSS does not have to be configured.
- BTransparent Interconnection of Lots of Links can be configured simultaneously.
- CEqual-Cost Multipath can be used to choose the forwarding path.
- DThe control plane and management plane remain separate.
Explanation
Cisco FabricPath uses IS-IS as its control plane to enable ECMP across the fabric, allowing multiple active forwarding paths simultaneously unlike STP-based designs.
Common mistakes.
- A. VSS is an independent Cisco technology for combining two physical switches into one logical switch and is not a requirement or benefit of FabricPath.
- B. TRILL (Transparent Interconnection of Lots of Links) is the IETF standard that inspired FabricPath, but they are separate implementations and cannot be configured simultaneously on the same device.
- D. FabricPath does not inherently separate the control plane from the management plane; that separation is an architectural design principle unrelated to FabricPath's specific capabilities.
Concept tested. Cisco FabricPath ECMP forwarding in data center fabrics
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